"""
了解
语法：
for a in range(1,10):
  for b in range(1,5):
    代码块
外层循环一遍，内层循环n遍


"""
for a in range(1,10):
  print("a:",a)
  print("---------------------")
  if a==3:
      for b in range(1, 5):
          print("b:", b)
  print("---------------------")


for a in range(1,24):
    for b in range(1,61):
        for c in range(1,61):
            pass

